64215410688 has 480 divisors, whose sum is σ = 225422477280. Its totient is φ = 17955717120.

The previous prime is 64215410663. The next prime is 64215410713. The reversal of 64215410688 is 88601451246.

It is a happy number.

64215410688 is a `hidden beast` number, since 6 + 4 + 21 + 541 + 0 + 6 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (64215410663) and next prime (64215410713).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23720631 + ... + 23723337.

It is an arithmetic number, because the mean of its divisors is an integer number (469630161).

Almost surely, 2^64215410688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64215410688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112711238640).

64215410688 is an abundant number, since it is smaller than the sum of its proper divisors (161207066592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64215410688 is a wasteful number, since it uses less digits than its factorization.

64215410688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 64215410688 in words is "sixty-four billion, two hundred fifteen million, four hundred ten thousand, six hundred eighty-eight".